<template>
  <div :class="className" ref="el" :style="{ height: height, width: width }" />
</template>

<script lang="ts">
import { defineComponent, markRaw, ref, watch, onMounted, nextTick, onBeforeUnmount } from 'vue'
import * as echarts from 'echarts'
import resize from './hooks/useResize'
require('echarts/theme/macarons')

const animationDuration = 1000
export default defineComponent({
  props: {
    className: {
      type: String,
      default: 'chart'
    },
    width: {
      type: String,
      default: '100%'
    },
    height: {
      type: String,
      default: '300px'
    }
  },
  setup() {
    const chart = ref<echarts.ECharts | null>(null)
    const resizeHooks = resize({ chart: chart })
    const el = ref<HTMLElement>()

    const initChart = () => {
      if (el.value) {
        chart.value = markRaw(echarts.init(el.value, 'macarons'))
        chart.value.setOption({
          tooltip: {
            trigger: 'axis',
            axisPointer: {
              // 坐标轴指示器，坐标轴触发有效
              type: 'shadow' // 默认为直线，可选为：'line' | 'shadow'
            }
          },
          radar: {
            radius: '66%',
            center: ['50%', '42%'],
            splitNumber: 8,
            splitArea: {
              areaStyle: {
                color: 'rgba(127,95,132,.3)',
                opacity: 1,
                shadowBlur: 45,
                shadowColor: 'rgba(0,0,0,.5)',
                shadowOffsetX: 0,
                shadowOffsetY: 15
              }
            },
            indicator: [
              { name: 'Sales', max: 10000 },
              { name: 'Administration', max: 20000 },
              { name: 'Information Technology', max: 20000 },
              { name: 'Customer Support', max: 20000 },
              { name: 'Development', max: 20000 },
              { name: 'Marketing', max: 20000 }
            ]
          },
          legend: {
            left: 'center',
            bottom: '10',
            data: ['Allocated Budget', 'Expected Spending', 'Actual Spending']
          },
          series: [
            {
              type: 'radar',
              symbolSize: 0,
              areaStyle: {
                shadowBlur: 13,
                shadowColor: 'rgba(0,0,0,.2)',
                shadowOffsetX: 0,
                shadowOffsetY: 10,
                opacity: 1
              },
              data: [
                {
                  value: [5000, 7000, 12000, 11000, 15000, 14000],
                  name: 'Allocated Budget'
                },
                {
                  value: [4000, 9000, 15000, 15000, 13000, 11000],
                  name: 'Expected Spending'
                },
                {
                  value: [5500, 11000, 12000, 15000, 12000, 12000],
                  name: 'Actual Spending'
                }
              ],
              animationDuration: animationDuration
            }
          ]
        })
      }
    }
    onMounted(() => {
      nextTick(() => {
        initChart()
      })
    })
    onBeforeUnmount(() => {
      if (chart.value) {
        chart.value.dispose()
        chart.value = null
      }
    })
    return { el, chart, ...resizeHooks }
  }
})
</script>

<style scoped lang="scss">
/*  */
</style>
